A 29-year-old woman presents for evaluation of headaches. She reports that they have grown increasingly frequent over the past 12 months. She describes them as a feeling of pressure and pain in her forehead, under her eyes, and over her cheeks. Her only other complaint is "feeling stuffy," though she denies fever, cough, sneezing, or purulent nasal discharge. She reports that she "sometimes" takes ibuprofen to treat her headache but that it doesn't work well, so she usually "doesn't bother."